3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = array( 'foo' => 'oof' ); var_dump($foo['sub']['arrays']['are']['pretty']['cool']); ?>
Output for 5.3.0 - 7.2.0
Notice: Undefined index: sub in /in/5Wq88 on line 6 NULL
Output for 4.3.0 - 5.2.17
Notice: Undefined index: sub in /in/5Wq88 on line 6 NULL